JP3026423B2 - Control device for level crossing trouble notification means - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a railroad crossing obstruction notifying means which operates a railroad crossing obstruction notifying device in response to an input signal of an emergency switch to notify a railroad crossing obstruction. Here, the railroad crossing trouble notifying means is a notifying means such as a special signal light emitting device, and is a concept including an emergency switch in some cases.

[0002]

2. Description of the Related Art Conventionally, when a car or the like cannot escape from a railroad crossing, when an emergency switch installed near the railroad crossing is depressed, a special signal light emitter shows a stop signal and enters the railroad crossing. An emergency stop is reported to the coming train. In this case, the train stops at the position just before the railroad crossing, and after confirming the safety of the railroad crossing, slowly passes through the railroad crossing, and then the train driver gets off the train and sends an emergency switch or a railroad crossing trouble notification means. Is performing a return operation to return to In recent years, mischief has often caused the emergency switch to be depressed, and it is necessary to perform a return operation each time.

[0003]

However, in such a conventional technique, for example, when a train driver bothers to get off the train, or when a repair person goes to the site, the emergency switch or the railroad crossing fault notification means is returned. It is necessary to perform the work by hand, and a lot of time is spent on the work, and if mischief occurs frequently, the time loss in the return work increases,
There was a problem that the operation of the train was adversely affected. The present invention has been made in view of such problems of the conventional technology, and automatically restores the level crossing trouble notifying means so that the returning operation can be performed promptly and the time required for the returning operation can be reduced. It is possible to reduce the loss and ensure the safety of train operation, prevent the train operation from being adversely affected, improve safety, reduce power consumption, and ensure reliability. It is an object of the present invention to provide a control device for a railroad crossing obstruction notifying means which can be improved.

[0004]

[Means for Solving the Problems]

1 A control device of a railroad crossing obstruction notifying means which operates a railroad crossing obstruction notifying means (12) in response to an input signal of an emergency switch (10) to notify a railroad crossing obstruction, and which is a train in a track area including a crossing. Track circuit for detecting the presence or absence of a vehicle (20)
Control means (3) for sending a return signal to said activated level crossing trouble notifying means (12) when said track circuit (20) detects that the train has advanced and exited out of the track area.
0), a control device for a railroad crossing obstruction notifying means.

[0005] (2) A control device of a level crossing obstruction notifying means for operating a level crossing obstruction notifying means (12) in response to an input signal of an emergency switch (10) to notify a level crossing obstruction, wherein the track section includes a level crossing. A track circuit (20) for detecting the presence or absence of a train in a train;
A train detecting means (40) for detecting passage of a train; and a track circuit (2) for detecting that the train has advanced and exited out of the track area.
Control means (30) for sending a return signal to said activated level crossing trouble notifying means (12) when the train detecting means (40) detects that the train has passed and that the train has passed.
And a control device for the level crossing obstruction notification means.

[0006] 3 is a control device of the railroad crossing obstruction notifying means, wherein the railroad crossing obstruction notifying means (12) is operated by an input signal of the emergency switch (10) to notify the crossing obstruction obstruction. A track circuit (20) for detecting the presence or absence of a train in a train;
A train detecting means (40) for detecting passage of the train when the train enters the track area, and the track circuit (20) detecting that the train has advanced and retreated out of the track area,
When the train detection means (40) detects that the train has passed, the activated level crossing trouble notification means (12)
And a control means (30) for sending a return signal to the control device.

[0007] 4 is a control device of the railroad crossing obstruction notifying means, which operates the railroad crossing obstruction notifying means (12) in response to the input signal of the emergency switch (10), and notifies the railroad crossing obstruction, wherein the track section including the crossing A track circuit (20) for detecting the presence or absence of a train in a train;
A train detecting means (40) for detecting passage of the train when the train enters the track area, and the track circuit (20) detecting that the train has advanced and retreated out of the track area,
In addition, the train detecting means (40) detects that the train has passed, and the activated railroad crossing obstruction notifying means (12) is activated on condition that the train stops once before the railroad crossing.
And a control means (30) for sending a return signal to the control device.

Next, the operation of the invention described in each of the above items will be described. In the control device of the railroad crossing obstruction notifying means according to the item 1, when the railroad crossing obstruction notifying means (12) is activated by an input signal of the emergency switch (10) to notify the railroad crossing obstruction, the train usually stops before the railroad crossing. After confirming the safety of the railroad crossing, pass slowly at the railroad crossing. During this time, the railroad crossing trouble notification means (12) continues to operate. When the train advances and exits the track area, and the track circuit (20) outputs a detection signal of train exit, the control means (30) operates the railroad crossing fault notification means (12) which continues to operate and the emergency signal generation state. A return signal is sent to the emergency switch (10), and the railroad crossing trouble informing means (1)
2) and the emergency switch (10) return. Thereby,
The train driver has to work to restore the railroad crossing obstruction notification means,
There is no need to bother to get off the train, the return work can be performed quickly, and a large time loss in train operation can be prevented.

In the control device of the railway crossing obstruction notifying means according to the item (2), the track circuit (20) detects that the train has advanced and exited out of the track area, and the train detecting means has detected that the train has passed. Since the control means (30) for sending a return signal to the activated level crossing obstruction notifying means (12) when (40) is detected is provided, it is determined whether or not the level crossing obstruction notifying means (12) should be returned. The condition (2) can be provided twice to improve the reliability of the return operation.

In the control device of the railway crossing obstruction notifying means according to the third aspect, the train detecting means (located at the end of the railroad crossing in the train traveling direction and capable of detecting the passage of the train when the train enters the track area ( 40), when the track circuit (20) detects that the train has advanced and exited out of the track area, and when the train detection means (40) has detected that the train has passed, the above-described operation is performed. Since the control means (30) for sending a return signal to the railroad crossing obstruction notifying means (12) is provided, the train detecting means (40) can be operated only for a required minimum operation time, thereby reducing power consumption. be able to. In addition, the train detection means (4) is used only while the track circuit (20) is operating.
0) is activated, so that a malfunction such as the train detection means (40) detecting other than a train is less likely to occur.

In the control device of the railroad crossing obstruction notifying means according to the fourth aspect, the track circuit (20) detects that the train has advanced and exited out of the track area, and that the train has passed the train detecting means. (40) is provided with the control means (30) for detecting and detecting and returning a return signal to the activated level crossing obstruction notifying means (12) on condition that the train has temporarily stopped at a position immediately before the level crossing. The conditions for determining whether or not the returning operation of the level crossing trouble notifying means (12) should be performed are provided in triplicate, so that the reliability of the returning operation can be further improved.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Various embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of the present invention. The configuration of the present invention includes a track circuit 20.
Is used. The track circuit 20 is for detecting that the train has entered a certain track area,
As shown in FIG. 2, the presence or absence of a train in the track circuit area (points A to C) can be detected. A railroad crossing is included in the track circuit area.

In the railroad crossing, an emergency switch 10 and a railroad crossing obstruction notifying means 12 which is a special signal light emitting device activated by an input signal of the emergency switch 10 are provided in addition to the railroad crossing cutoff alarm and the crossing gate. . The input signal of the emergency switch 10 is a pulse signal, and after the generation of the pulse signal, the emergency signal generation circuit is kept in the output state. As shown in FIG. 1, the control means 30 outputs an operation command signal to the railroad crossing trouble notification means 12 based on an input signal of the emergency switch 10, and when the train enters a point A which is a starting point in the track circuit area. , The track circuit 20 controls the train entry signal
Output to 0.

By keeping the railroad crossing obstruction notifying means 12 in the operating state, the train stops at the position in front of the railroad crossing, and after confirming the safety inside the railroad crossing, slowly passes the railroad crossing. When the train slowly moves down and eventually leaves point C, which is the end point of the track circuit area, the track circuit 20 outputs a train exit signal to the control means 30, and the control means 30 returns to the emergency switch 10 and the emergency signal generation circuit. Outputs each signal. FIG. 3 shows a time chart of the configuration of the invention. That is,
In response to the input signal of the emergency switch 10, the control means 30 outputs an operation command signal to the railroad crossing obstruction notifying means 12, and the railroad crossing obstruction notifying means 12 emits light to notify the crossing obstruction. The emergency signal generation circuit 14 holds the output state.

On the other hand, when the train enters the track circuit area (point A shown in FIG. 2), the track circuit 20 outputs a train entry signal to the control means 30. When the railroad crossing obstruction notifying unit 12 emits light to notify the user of the obstruction of the railroad crossing, the train generally stops before the crossing (point B shown in FIG. 2). The driver checks the safety of the railroad crossing from the driver's seat, and proceeds at the railroad crossing slowly while confirming that there is no problem. During this time, the railroad crossing trouble notification means 12 continues to emit light.

When the train advances and eventually exits from the track circuit area (point C shown in FIG. 2), the track circuit 20 outputs a train exit detection signal, and the control means 30 causes the railroad crossing fault notification means to keep emitting light. A return signal is sent to the emergency signal generation circuit 12 and the emergency signal generation circuit 14, the level crossing trouble notification means 12 stops emitting light, and the emergency signal generation circuit is held in a non-output state. This eliminates the need for the train driver to get off the train in order to perform the return operation of the railroad crossing obstruction notification means 12 and the like, and can quickly perform the return operation. Even if the system frequently operates, it is possible to prevent a large time loss from occurring in train operation.

FIGS. 4 to 6 show a second embodiment of the present invention. In the present embodiment, as shown in FIG. 5, a train detection means 40 as a train sensor is installed between a railroad crossing in a track circuit area and a C starting point. As shown in FIG. 6, the train detection means 40 is in a detectable state from the input signal of the emergency switch 10, and when the train detection means 40 detects the passage of the train, the train passage signal generation circuit 45 is in a passage signal output state. . When the train detection means 40 detects the passage of the train, the emergency signal generation circuit 14 enters a non-output state.

When the train exits from point C shown in FIG. 5 and the track circuit 20 detects the exit and the train passing signal generating circuit 45 is in a passing signal output state, the control means 30
Outputs a return signal to the railroad crossing trouble notifying means 12. Since the condition of whether or not to output the return signal to the level crossing trouble notifying means 12 is doubled, the reliability of the return operation can be improved.

FIG. 7 is a time chart showing a third embodiment of the present invention. That is, in this embodiment, when the train enters point A, which is the starting point of the track circuit area,
When the train detection means 40 is in a detectable state and the train detection means 40 detects the passage of the train, the emergency signal generation circuit 14
Are in a non-output state.

If the detectable state of the train detecting means 40 is the second
The time is shorter than the detectable state of the embodiment, and the power consumption can be reduced accordingly. Further, since the train detection means 40 operates only while the track circuit 20 is operating, a malfunction such as the train detection means 40 detecting something other than a train is less likely to occur.

In the above-described various embodiments, as shown in FIG. 8, a track crossing approach detecting means 50 is provided so that the track circuit 20 detects that the train has advanced and exited out of the track area, and When the train passage signal generation circuit 45 is in the passage signal output state, and when the approach detection means 50 before the railroad crossing detects that the train has temporarily stopped at the position immediately before the railroad crossing,
The control means 30 may send a return signal to the level crossing trouble notifying means 12. By providing the conditions for determining whether or not to perform the returning operation of the railroad crossing trouble notification means 12 in triplicate, the reliability of the returning operation can be further improved.

As the train detecting means 40, it is necessary to select a means for not detecting a worker or a train other than the train concerned. That is, there are means using the regression reflection type sensor shown in FIGS. 9 and 10, means using the distance limited reflection type sensor shown in FIG. 11, and means using optical communication shown in FIG.

As means using a retroreflective sensor, a retroreflective mirror is provided on the train wall, a retroreflective sensor is installed on the ground side, and light emitted from the retroreflective sensor is polarized by the retroreflective mirror, and polarized light is emitted. By receiving light,
"Sensitive". The retro-reflective mirror should have a sufficient size, and the retro-reflective sensor should make a certain angle in the optical path so as not to detect the retro-reflective mirror of the adjacent train.

As means by the distance-limited reflection type sensor, the corner of the roof of the train is detected by the distance-limited reflection sensor,
This is to prevent erroneous sensing of workers other than the train.
The means by optical communication is that the light emitter on the train side outputs a digitalized optical signal, the light receiver on the ground receives the optical signal, and when the received optical signal matches a preset value, It outputs a train detection signal. The optical signal is resistant to electromagnetic noise, and can improve the reliability of train detection.

In the second and third embodiments, the emergency signal generating circuit 14 and the train passing signal generating circuit 45 are provided to maintain an emergency signal generating state and maintain a passing signal output state. However, an emergency signal generation state and a passing signal output state may be recorded in the storage unit of the present apparatus, and may be initialized when a return signal is output.

[0026]

According to the control device of the railway crossing obstacle notifying means according to the present invention, the railway crossing obstacle notifying means is automatically returned, so that the returning operation can be performed promptly and the time loss in the returning operation can be reduced. It is possible to reduce the number of trains, secure the safety of train operation, and prevent the train operation from being adversely affected.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of a control device of a railroad crossing obstruction notifying device according to a first embodiment of the present invention.

FIG. 2 is a layout diagram of a control device of a railroad crossing obstruction notifying device according to the first embodiment of the present invention.

FIG. 3 is a time chart of a control device of a level crossing obstruction notifying means according to the first embodiment of the present invention.

FIG. 4 is a conceptual diagram of a control device of a railroad crossing obstruction notifying device according to a second embodiment of the present invention.

FIG. 5 is a layout diagram of a control device of a level crossing obstruction notifying means according to a second embodiment of the present invention.

FIG. 6 is a time chart of a control device of a level crossing trouble notifying means according to a second embodiment of the present invention.

FIG. 7 is a time chart of a control device of a railroad crossing obstruction notifying means according to a third embodiment of the present invention.

FIG. 8 is a conceptual diagram of a control device of a railroad crossing obstruction notifying means according to another embodiment of the present invention.

FIG. 9 is a conceptual diagram of a train detecting means according to another embodiment of the present invention.

FIG. 10 is a conceptual diagram of a train detecting means according to another embodiment of the present invention.

FIG. 11 is a conceptual diagram of a train detecting means according to another embodiment of the present invention.

FIG. 12 is a conceptual diagram of a train detecting unit according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Emergency switch 12 ... Railroad crossing obstacle notification means 14 ... Emergency signal generation circuit 20 ... Track circuit 30 ... Control means 40 ... Train detection means 45 ... Train passage signal generation circuit 50 ... Trail crossing approach detection means

Claims (4)

(57) [Claims] 1. A control device for a railroad crossing obstruction notifying device, wherein a railroad crossing obstruction notifying device is operated by an input signal of an emergency switch to notify a railroad crossing obstruction. And a control means for sending a return signal to the activated level crossing obstruction notifying means when the track circuit detects that the train has advanced and exited out of the track area. A control device for a railroad crossing obstruction notifying means, characterized in that: 2. A control device for a railroad crossing obstruction notifying means, wherein a railroad crossing obstruction notifying means is operated in response to an input signal of an emergency switch to notify a railroad crossing obstruction. A track circuit that detects a train, a train detection means that is located at a level crossing in a train traveling direction and detects passage of a train, and the track circuit detects that the train has advanced and exited the track area, And a control means for transmitting a return signal to the activated level crossing trouble notifying means when the train detecting means detects that the train has passed, a control device for the level crossing trouble notifying means. 3. A control device for a railroad crossing obstruction notifying means which operates a railroad crossing obstruction notifying means in response to an input signal of an emergency switch to notify a railroad crossing obstruction. A track circuit that detects a train, a train detection means that is located at a level crossing in a train traveling direction and that can detect the passage of a train when the train enters the track area, Control means for transmitting a return signal to the activated level crossing obstruction notifying means when the track circuit detects that the train has exited, and when the train detecting means detects that the train has passed. A control device for a railroad crossing obstruction notifying means, characterized in that: 4. A control device for a railroad crossing fault notifying means, wherein a railroad crossing fault notifying means is operated in response to an input signal of an emergency switch to notify a railroad crossing fault, and wherein there is a train in a track area including the railroad crossing. A track circuit that detects a train, a train detection means that is located at a level crossing in a train traveling direction and that can detect the passage of a train when the train enters the track area, The track circuit detects that the train has exited, and the train detecting means detects that the train has passed, and the activated railroad crossing fault notification is provided on condition that the train stops once before the railroad crossing. Control means for sending a return signal to the control means.